[PATCH 7/8] char: rtc: remove task handling

[Alexandre Belloni]

Since commit 9e7002a70e42 ("char: rtc: remove unused rtc_control() API"),
it is not possible to set a callback anymore, remove its handling from the
interrupt handler.

Cc: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
---
Hi,

My plan is to take that patch through the RTC tree because the next patch relies
on the rtc_task_t *rtc_callback removal.

 drivers/char/rtc.c | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 94fedeeec035..4948c8bda6b1 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -193,14 +193,6 @@ static unsigned long rtc_freq;		/* Current periodic IRQ rate	*/
 static unsigned long rtc_irq_data;	/* our output to the world	*/
 static unsigned long rtc_max_user_freq = 64; /* > this, need CAP_SYS_RESOURCE */
 
-#ifdef RTC_IRQ
-/*
- * rtc_task_lock nests inside rtc_lock.
- */
-static DEFINE_SPINLOCK(rtc_task_lock);
-static rtc_task_t *rtc_callback;
-#endif
-
 /*
  *	If this driver ever becomes modularised, it will be really nice
  *	to make the epoch retain its value across module reload...
@@ -264,11 +256,6 @@ static irqreturn_t rtc_interrupt(int irq, void *dev_id)
 
 	spin_unlock(&rtc_lock);
 
-	/* Now do the rest of the actions */
-	spin_lock(&rtc_task_lock);
-	if (rtc_callback)
-		rtc_callback->func(rtc_callback->private_data);
-	spin_unlock(&rtc_task_lock);
 	wake_up_interruptible(&rtc_wait);
 
 	kill_fasync(&rtc_async_queue, SIGIO, POLL_IN);
-- 
2.18.0